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Finding the Fourth Proportional to 235,371.89, 324,860.37 and 139,860.11

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Solution

The fourth proportional to 235,371.89, 324,860.37 and 139,860.11 is: 193,034.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,371.89 : 324,860.37 = 139,860.11 : x
  2. Step 2: Convert to fraction form
    235,371.89/324,860.37 = 139,860.11/x
  3. Step 3: Cross multiply
    235,371.89x = 324,860.37 × 139,860.11
  4. Step 4: Simplify right side
    235,371.89x = 45,435,007,082.84
  5. Step 5: Solve for x
    x = 45,435,007,082.84/235,371.89
  6. Step 6: Final answer
    x = 193,034.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.